In the scene where Cyrus argues with his mom and then storms out of the house and peers back in through the window, he goes from obviously clean-shaven while inside the house to obviously scruffy when outside the house.
When Cyrus and his mom are at his setup, and she is going through the photographs, Cyrus' Apple Macbook says Alienware below the mouse pad. The two are separate manufacturers.
The license plate on the 10' U-Haul truck is not the actual plate that belongs to the truck. All of the newer (last 10 years or so) U-Haul truck have Arizona plates as U-Haul headquarters is in Phoenix, AZ.